The tuco-tucos are members of a group of rodents that belong to the family Ctenomyidae. The tuco-tucos belong to a single genus: Ctenomys, but they include 38 different species. The relationships between one amother are debated by taxonomists, but it is thought they are related to porcupines, guinea pigs, and capybaras. All 38 species of tuco-tuco are found in Central America and South America. They are heavily built with short legs. Its skin is loosely applied, possibly to slide about the tunnels they create. They have long forefeet for burrowing and bristled hind feet for grooming. They also have large heads and hairy tails. Ecologically speaking, the tuco-tucos are the South American version of the North Americanpocket gophers. The Pliocene epoch (a. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Jump to: navigation, search Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria Placozoa Subregnum Bilateria Acoelomorpha Orthonectida Rhombozoa Myxozoa Superphylum Deuterostomia Chordata (vertebrates, etc. ... Typical Classes Subphylum Urochordata - Tunicates Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Jump to: navigation, search Orders Subclass Multituberculata (extinct) Plagiaulacida Cimolodonta Subclass Palaeoryctoides (extinct) Subclass Triconodonta (extinct) Subclass Placentalia Afrosoricida Artiodactyla Carnivora Cetacea Chiroptera Creodonta (extinct) Dermoptera Desmostylia (extinct) Embrithopoda (extinct) Hyracoidea Insectivora Lagomorpha Litopterna (extinct) Macroscelidea Notoungulata (extinct) Perissodactyla Pholidota Primates Proboscidea Rodentia Scandentia Sirenia Tubulidentata Xenarthra Subclass Marsupialia Dasyuromorphia... Families Many, see text The order Rodentia is the most numerous of all the branches on the mammal family tree. ... Hystricognathi is a subordo of the Rodentia. ... In biology, a genus (plural genera) is a grouping in the classification of living organisms having one or more related and morphologically similar species. ... Taxonomy (from Greek ταξινομία from the words taxis = order and nomos = law) may refer to either a hierarchical classification of things, or the principles underlying the classification. ... Genera Family Erethizontidae Coendou Sphiggurus Erethizon Echinoprocta Family Hystricidae Atherurus Hystrix Thecurus Trichys Porcupines are rodents known for their coat of sharp spines, or quills, that defend it from predators. ... Jump to: navigation, search Species Cavia porcellus Cavia aperea Cavia tschudii Cavia guianae Cavia anolaimae Cavia nana Cavia fulgida Cavia magna Guinea pigs (also called cavies) are rodents belonging to the family Caviidae and the genus Cavia. ... Jump to: navigation, search Binomial name Hydrochoerus hydrochaeris (Linnaeus, 1766) The capybara (Hydrochoerus hydrochaeris) is the largest of living rodents (the long extinct rodent Phoberomys pattersoni was significantly bigger. ... Central America is the region of North America located between the southern border of Mexico and the northwest border of Colombia, in South America. ... South America South America is a continent crossed by the equator, with most of its area in the Southern Hemisphere. ... (Ecology is sometimes used incorrectly as a synonym for the natural environment. ... Jump to: navigation, search World map showing North America (geographically) A satellite composite image of North America North America is a continent in the northern hemisphere, bordered on the north by the Arctic Ocean, on the east by the North Atlantic Ocean, on the south by the Caribbean Sea, and... Genera see text The pocket gophers are burrowing rodents of the family Geomyidae. ...
Some authors have suggested that the octodontids should be reclassified in the order Lagomorpha, but this has not been supported by further analyses (e.g.
Older literature includes the tuco-tucos in the family, as the subfamily Ctenomyinae, but these animals are normally now treated as a separate family, the Ctenomyidae.
Members of the genus Aconaemys are referred to as rock rats, and members of genus Octodon are all called degus, though the name Degu on its own implies O.
Depending upon the assignment of fossils to the family, the fossil record for the family extends from either the early Miocene or early Oligocene to recent.
All recent systematic treatments place the families Octodontidae, Capromyidae, Ctenomyidae, Echimyidae, Myocastoridae, and Abrocomidae in the monophyletic (sharing a common ancestry) superfamily Octodontoidea.
A molecular phylogenetic study in 2003 by Honeycutt and others suggested that the families Octodontidae and Ctenomyidae, commonly known as tuco-tucos, share a common ancestry, followed by an association with a group containing the families Myocastoridae, Echimyidae, and Capromyidae.
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